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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. 24 hours before end of estrus cycle






2. Important 'landmark' during palpation






3. 1-2 days






4. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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5. Superior genes are _______ to multiply






6. 1-2 days






7. Luteolysis happens because of the ____________ hormone






8. Superior genes are _______ to multiply






9. 26 hours after estrus begins






10. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






11. Front feet and head first. (except for hogs and dogs)






12. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






13. 1. brain function - 2. blood flow - 3. willing female






14. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






15. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






16. What makes the milk flow through the mammary glands?






17. 24 hours before end of estrus cycle






18. Days which have decreasing daylight hours

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19. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






20. 147 days






21. What helps regulate spermatogenesis?






22. Provide nourishment for the developing sperm






23. (LH) stimulates the Leydig cells to produce testosterone






24. Depository for semen during insemination. where urine leaves the body






25. Prevent the cow from getting an infection from the calve






26. 1-3 days






27. Failure to have one testis (gonad) to descend






28. 336 days






29. Implies the amount of estrogen production






30. 10-37 (21) days






31. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






32. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






33. 283 days






34. Microscopic - make sure not sterile - very few bulls are actually tested






35. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






36. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






37. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






38. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






39. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






40. Why Dairy calves are fed powdered milk.






41. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






42. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






43. Milk is 15% ________ and 85% __________.






44. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






45. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






46. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






47. Not under a timeline - cow can not be sold as steak






48. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






49. (LH) stimulates the Leydig cells to produce testosterone






50. Implies the amount of estrogen production







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